狀況不明,髒髒舊舊。
改不了宅宅的習慣,一陣拆拆弄弄,加上滿身飛塵,總算是有點樣子了。
插電,測測功耗;7W,不知算高還算低?
連上Console,要密碼……
上CISCO查查流程,直接重置吧!
拔電後按住前面板MODE鍵,插電。
畫面出現switch:時放開MODE鍵,進入BABY IOS。
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再執行flash_helper(switch:flash_helper)
此時再利用dir flash:指令,查詢目前flash內容(switch:dir flash)
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如要保留舊設定及密碼,可將config.text改名為config.old。
(switch:rename flash:config.text flash:config.old)
執行boot,重新啟動 (switch:boot)
*如不保留,則清除即可(Switch:delete flash: config.text)( Switch:reset)
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(記得設定完後要下write指令,將設定寫入!)
同時,如發現IOS版本過舊,亦可一併升級。
IOS下載(須於CISCO註冊):
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1. 首先設定Switch IP,方便連線至TFTP使用。
C2950-24>enable
C2950-24#config terminal
Enter configuration commands, one per line. End with CNTL/Z.
C2950-24(config)#interface vlan 1
C2950-24(config-if)#ip address 192.168.100.224 255.255.255.0
C2950-24(config-if)#no shutdown
2. 檢查flash大小及內容。
C2950-24#sh flash:
Directory of flash:/
2 -rwx 2664051 Apr 17 1993 06:52:12 +00:00 c2950-i6q4l2-mz.121-11.EA1.bin
3 -rwx 5 Mar 01 1993 03:23:42 +00:00 private-config.text
18 -rwx 3721946 Mar 01 1993 03:19:52 +00:00 c2950-i6k2l2q4-mz.121-22.EA13.bin
5 -rwx 2114 Mar 04 1993 19:33:45 +00:00 config.old
20 -rwx 1471 Mar 01 1993 03:23:42 +00:00 config.text
7 -rwx 109 Apr 17 1993 06:53:03 +00:00 info
8 drwx 704 Apr 17 1993 06:53:01 +00:00 html
19 -rwx 109 Apr 17 1993 06:53:03 +00:00 info.ver
22 -rwx 314 Mar 01 1993 03:21:51 +00:00 env_vars
7741440 bytes total (54784 bytes free)
3. 清除管理頁面及舊IOS(如空間足夠或僅升級CLI版則不需)
C2950-24#del flash:html/*
Delete filename [html/*]?
Delete flash:html/homepage.htm? [confirm]
Delete flash:html/not_supported.html? [confirm]
Delete flash:html/common.js? [confirm]
Delete flash:html/cms_splash.gif? [confirm]
Delete flash:html/cms_13.html? [confirm]
Delete flash:html/cluster.html? [confirm]
Delete flash:html/Redirect.jar? [confirm]
Delete flash:html/c4v4_disc.sgz? [confirm]
Delete flash:html/CMS.sgz? [confirm]
Delete flash:html/CiscoChartPanel.sgz? [confirm]
Delete flash:html/cms_boot.jar? [confirm]
C2950-24#del c2950-i6q4l2-mz.121-11.EA1.bin
Delete filename [c2950-i6q4l2-mz.121-11.EA1.bin]?
Delete flash:c2950-i6q4l2-mz.121-11.EA1.bin? [confirm]
4. 從tftp下載ios並解壓縮
C2950-24# archive tar /xtract tftp://192.168.1.2/c2950-i6k2l2q4-tar.121-22.EA13.tar flash:
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5. 確認IOS已下載並解壓縮
C2950-24#show flash:
Directory of flash:/
2 -rwx 3721946 Mar 01 1993 00:56:44 +00:00 c2950-i6k2l2q4-mz.121-22.EA13.bin
3 -rwx 5 Mar 01 1993 03:23:42 +00:00 private-config.text
20 -rwx 1471 Mar 01 1993 03:23:42 +00:00 config.text
7 -rwx 112 Mar 01 1993 00:54:00 +00:00 info
8 drwx 4416 Mar 01 1993 00:57:43 +00:00 html
19 -rwx 112 Mar 01 1993 00:58:18 +00:00 info.ver
22 -rwx 314 Mar 01 1993 03:21:51 +00:00 env_vars
7741440 bytes total (2145280 bytes free)
6. 驗證IOS
C2950-24#verify flash:c2950-i6k2l2q4-mz.121-22.EA13.bin
Verified flash:c2950-i6k2l2q4-mz.121-22.EA13.bin
7. 指定開機IOS
C2950-24#config terminal
C2950-24(config)#boot system flash:c2950-i6k2l2q4-mz.121-22.EA13.bin
C2950-24(config)#exit
C2950-24#
8. 重開機並寫入開機檔
C2950-24#reload
Proceed with reload? [confirm]
C2950-24>en
C2950-24#write
打完收工!
買二手機器建議注意以下事項:
1. 建議可找專業賣家購買(網拍賣家,台北、台南、高雄均有),減少問題發生。
2. 基本必備電源線、Console線,Router互聯需Serial cable,但要注意規格!
3. 與CISCO CONSOLE連線需要終端機軟體,IOS更新需要架設TFTP,可供使用的軟體很多,順手就好。(個人使用PuTTY與tftpd32)
4. 與Console連線時,須注意參數設定:
• Bits per second: 9600
• Data bits: 8
• Parity: None
• Stop bits: 1
• Flow control: None
5. 各級考試範圍不同,請謹慎挑選機型及IOS。
C2950-24# archive tar /xtract tftp://192.168.1.2/c2950-i6k2l2q4-tar.121-22.EA13.tar flash:
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5. 確認IOS已下載並解壓縮
C2950-24#show flash:
Directory of flash:/
2 -rwx 3721946 Mar 01 1993 00:56:44 +00:00 c2950-i6k2l2q4-mz.121-22.EA13.bin
3 -rwx 5 Mar 01 1993 03:23:42 +00:00 private-config.text
20 -rwx 1471 Mar 01 1993 03:23:42 +00:00 config.text
7 -rwx 112 Mar 01 1993 00:54:00 +00:00 info
8 drwx 4416 Mar 01 1993 00:57:43 +00:00 html
19 -rwx 112 Mar 01 1993 00:58:18 +00:00 info.ver
22 -rwx 314 Mar 01 1993 03:21:51 +00:00 env_vars
7741440 bytes total (2145280 bytes free)
6. 驗證IOS
C2950-24#verify flash:c2950-i6k2l2q4-mz.121-22.EA13.bin
Verified flash:c2950-i6k2l2q4-mz.121-22.EA13.bin
7. 指定開機IOS
C2950-24#config terminal
C2950-24(config)#boot system flash:c2950-i6k2l2q4-mz.121-22.EA13.bin
C2950-24(config)#exit
C2950-24#
8. 重開機並寫入開機檔
C2950-24#reload
Proceed with reload? [confirm]
C2950-24>en
C2950-24#write
打完收工!
買二手機器建議注意以下事項:
1. 建議可找專業賣家購買(網拍賣家,台北、台南、高雄均有),減少問題發生。
2. 基本必備電源線、Console線,Router互聯需Serial cable,但要注意規格!
3. 與CISCO CONSOLE連線需要終端機軟體,IOS更新需要架設TFTP,可供使用的軟體很多,順手就好。(個人使用PuTTY與tftpd32)
4. 與Console連線時,須注意參數設定:
• Bits per second: 9600
• Data bits: 8
• Parity: None
• Stop bits: 1
• Flow control: None
5. 各級考試範圍不同,請謹慎挑選機型及IOS。
參考網頁:
C2950產品技術資料
http://www.cisco.com/en/US/products/hw/switches/ps628/products_tech_note09186a0080169696.shtml
CISCO IOS下載
http://tools.cisco.com/support/downloads/pub/Redirect.x?mdfid=272995357
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